Machine for tearing fabrics



` Sept,A 25' J. D.y FRIER MACHINE FOR TEARING FABRICS Fi-ld July 19.'1922 2 sheets-sheet 1 sept. 25, 1923.

J. D. FRIER MACHINE FOR TEARING FABRICS Filed July 19.

1922 2 Sheets-Sheet 2 Patented Sept. 25, i923.Y

nairsnsrsrss earner JOHN DOUGLAS FPJEER, OF VARINGSTOVN, l'RELAND.

MACHINE FOR 'BEARING FABRICS.

Application filed `Tuly 19,1922. Serial No. 576,136.

To all whom t mayconcern:

, Be it known that I, JOHNDOUGLAS FRIER, a subject of the King of GreatBritain and Ireland, residing at lfVaringstown, county Down, Ireland,have invented certain new and useful Improvements in Machines for'fearing Fabrics, of which the following is a speciiication j Thisinvention relates to a machine for tearing fabrics and applicable forthe production of stripsof cloth suitable, for eX- ampler, for themanufacture of square or .oblong articles such as handkerchiefs, pillowcases, etc.

Under my invention the fabric is led from a pile on artable, or a bar,or roller over and 4between guide bars or rollers and through a slot ina transverse plate with suitable guides where it is torn, one stripbeing' led to a winding roller or equivalent, at one side of the machineand the other strip to a winding` roller, or equivalent, at the otherside of the machine. The torn strips of cloth from the slotted plate areled from guide rollers to rollers on a pivoted frame, passing under saidrollers and upwards over other guide rollers to the winding rollers. thearrangement being the same at each side of the machine and such that ifmore cloth is wound on to one winding roller than another, the pivotedframe will tilt upwardly at the end nearestto the roller taking thecloth quicker. This tilting of the frame may be used to operate awarning r bell', or equivalent,'and to operate a stop motion whereby themachine will be stopped to allow of adjustment of the cloth coming fromVthe tearing plate.

rlhe cloth as it passes from the table, or.

bar, or roller,is, preferably, first led over a guide roller1 or bar,then under a second guide roller and back over the top of the firstguideroller, then under a roller, supported on pivoted brackets, -whichroller rcstson the cloth in such position as to assist or add to thetensioning effect and when the tension of the cloth, moving in twodirections over the first mentioned guide roller or bar is excessive thepivoted roller will rise on its pivots and will thus ease the tension.

Theinvention will now be described with reference to the accompanyingdrawings whereon:-

Fig. 1 is a side elevation of a cloth tearing machine constructed inaccordance with my invention.

. Fig. 2 Fig. l.

Figs. 3 and 4C are respectively side view of the top portion and endview of the lower portion of the stop motion in accorciance with theinvention.

Referring to the drawings :4-

The fabric l is supported by a bar 2 on a movable table 3 from which thefabric 1, after being nicked, is led round tension rollers 4, 5 andaround a pivoted tension roller 6 and up between transverse bars 7 and 8where it is torn. From the bars 7 and 8, one end of the fabric 1 is ledround rollers 9, 10 and 11 to a winding roller 12 at one end of thevmachine, the other end of the fabric being led round rollers 13, 14; and15 to a winding roller 16 at the other end of the machine. The rollers10 and 14 are supported on a tilting frame 17 pivoted at 18 to themachine frame, the movement of the frame 17 being` controlled by thetake up of the fabric on the winding rollers so that if one of thewinding rollers takes up faster than the other7 the frame 17 will tiltlower on the side which takes up the least fabric.

A lever 19 is pivotally supported at 2()ZL on one end of a. plate 20, onwhich a transverse plate 21 is pivotally supported. The plate 21 is heldfrom movement by the end 19b of the lever 19 until released thereby. Aslidable rod 22 is held from movement by the plate 21 until the latteris released by moi/'ement of the end 19b of the lever 19. A bar 23 ispivotally supported on the plate 2O and presses against the slidable rod22. A lever 24 is pivotally connected with the end 20" of the plate 2Oand is connected with one end of a link 25 whose other end is connectedwith the plate 20. Pivotally sup ported at 26a is a lever 26 which isnormally is a plan view corresponding to held in position by arweight27. One end Vof a member 28 ispivotally supported at 28a, its other end28b engaging the en d 29a of a bar 29 on which the belt foik 30 iscarried. The bar 29 is movable under the action of a spring 30a. Thearrangement is Vsuch that if the roller 12fis taking up more i fabricthan the roller 16` the left side of the frame 17 will rise, and, whenit has risen to its fullest extent it will cause the bar 10EL to comeinto contact with the end 19 of theV lever 19 and cause the end 191 ofthe lever 19 to be moved Vand release the pla-te 21,

Vthereby allowing the slidable rod 22 to be pushed forward by the bar23'into engagement with a cam 31 on the spindle 32 of the winding`*roller 12. The engagement of the slidable rod 22 with the cam 31causes the rod 22 to be pressed down into engagement with 'the end 2Gbof the lever 26S-thereby causing the end 2GC of the lever 26 to rise andlift the end 28b of the lever 28, out of "engagement with tlie'end 29aof the bar 29 which is then free to be moved bythe spring '30a and sochange the belt on to the loose pulley and thereby stop the machine.

, If the winding roller 16 is taking` up more -The fabric in this easeis first led under thel fabric than the roller 12 the bar 10'LL will becaused to come into Contact with the lever 24 and depress same andthrough the link 25 the end 19b of the lever 19 will be pulled down andwill-release the plate 21 which `will allow the rod 22 to be moved bythe bar i223 into engagement 'with the cam 31 there- `"by'causing therod 22 to be depressed and to 4act in the manner as hereinbeforedescribed and so stop the machine. v

.i/Vhen it is necessary to resplit a width of fabric which has beensplit, the roller containing the split fabric is supported on a spindle33 carried by movable plates 341.

pivoted tension roller 6, then over the roller.

4t and `round the roller 5 from which it is led tothe tearing bars 7 and8.

'Having now fully described my invention -wliat I claim and desire tosecure bv Letters Patent is:- Y y f l. A machineV for tearing fabricslongitudinally, compris-ing a framework, a support yfor the fabric, amovable table'carrying said into vaction by the location of the tiltingAframe whenV it is tilted to a predetermined extent.

2. A maehinefor tearing fabrics longitudinally, comprising aframework, asupportY for the fabric,a movable table carrying said support, a windingroller on each side of said support and carried by the framework,

tensioning means for the fabric, transverse bars having a transverseslot vtherebetween wherethe fabric is torn by the pullV of the windingrollers on each side-thereof, a tilting frame interposed between thetearing bars and the winding rollers and round the ends of which thefabric is led to the winding rollers, the' position of the frame being.determined by the takeV up of the winding rollers, a plate supported ontheframework, a lever pivotally supported on the plate, a transverseplate also Ypivotally suppoi'tedron the plate on the frame work and heldfrom movement by'said lever until-released by Va movement of the leveigabar pivotally supported on the plate on the framework and pressingagainst a slidably 'supported rod normally held out of the range of'acam, the

tilting ofthe frame causing the bar pressingfon said rod to bring itinto contact with Vthe cam, which causes the slidable rod to be movedand in moving to` operate a weighted lever held in normal position by aweight and which when moved by thel slidable rod effects 'therelease ofa springcontrolled fork, which when released is moved Y by spring meansso as to cause the driving belt of the machine to be moved from the fastto the loose pulley.

3. A machine'foi' tearing fabrics longitufor the fabric, amovable tablecarrying said support, a winding roller on each side of said support andcarriedby vthe framework,

'tensioning means'for the fabric,rtransverse bars having a transverseslot therebetween where 'the fabric is tornV by the pull of the windingrollers on each side thereof,*a tilting frame interposed between thetearing Vbars andthe winding rollers and round the ends'of which thefabric is led 'tothe winding rollers, the position ofthe frame beingVdeterminedby the take up of the winding rollers, a plate supported onthe framework,

a levei'p'ivotally' supported on the plate, a transverse-plate alsopivotally supported on the plate onthe framework and. heldfroin movementby, said lever'until released by a movement of the lever, a barpivotally supported on theV plate onthe frame work 'and pressing`against a slidably Vsupportedjrod `normally held out of the range of acam, the

tilting of the frame causing the bar pressing on saidV rod to bringitinto contact with the cam, whichcauses the slidable rod to be ndinall'y,comprisinga frame work, a support moved and in moving to operate aWeighted determined limit causes the operation of said 10 lever held innormal position by a Weight stop motion.

and which When moved by the slidable rod In testimony whereof I aHiX mysignature effects the release of a spring controlled in presence of twoWitnesses.

fork, which When released is moved by spring means so asf to oause'theldriving belt JOHN DOUGLAS FRIER of the machine to be moved from the fastto Witnesses:

the loose pulley, and means whereby the tilt- ANDREW HAMILTON,

ing of the frame at either end beyond a pre- HARRY WALTER ALLsoP.

